1963 NCAA University Division basketball tournament

The 1963 NCAA University Division basketball tournament involved 25 schools playing in single-elimination play to determine the national champion of men's NCAADivision Icollege basketball in the United States. The 25th annual edition of the tournament began on March 9, 1963, and ended with the championship game on March 23, at Freedom Hall in Louisville, Kentucky. A total of 29 games were played, including a third-place game in each region and a national third-place game.

Loyola University Chicago, coached by George Ireland, won the national title with a 60–58 overtime victory in the final game, over the University of Cincinnati, coached by Ed Jucker. Art Heyman, of Duke University, was named the tournament's Most Outstanding Player. This tournament marked the last time that a city was host to two straight Final Fours.